Plowpoint



ug. 19, 1924a 1,505,668

C. R. PRIGEL PLOWPOINT Filed Aug. 23 1922,

47m/LA7 @Hainau- Patented Aug. 19, 1924. n

CHARLES R. PRIGEL, OEF HONIE CITY, KANSAS, ASSIGNOR OF ONE-FOURTH T0 HENRY SCHIMMELS AND ONE-FOURTH T0 W. ROY LEWIS, BOTH O'F HOME CITY,-IKANSAS.

PLOWPOINT.

Application led August 23, 1922. Serial No. 583,801.

To all whom t may concern.

Be it known that I, CHARLES R. FRIGEL, a citizen of the United States, residing at Home City, in the county of Marshall andl State of Kansas, have invented certain new and useful Improvements in Plowpolnts, of which the following is a specificatmn.

This invention relates to plows and has for its object the provision of a construction whereby the cutting edge of a plow share may be renewed without requiring the provision of an entirely new share. The 1nvention also seeks to provide a plow share with a removable cuttlng edge which, when in place, will be securely locked to the share so that it will not be apt to work loose while in use,\and other incidental objects of the inventio'nrw-ill hereinafter appear.

1n the accompanying drawings, which illustrate my invention,- j

Figure 1 is a perspective View of a plow share having my improved vcutter secured thereto; l

Fig. 2 is a transverse section on the line 2--2 of Fig. 1;

Fig. 3 is a perspective view of the cutter; Fig. 4 is a perspective view of a portion of the share.

The plow share 1 is substantially of the usual form provided with countersunk openings 2 adjacent its upper edge, through which fastening bolts may be inserted to secure it to the lower edge of the moldboard in the usual manner and at its working end is extended forwardly, as shown at 3, to provide a point, while projecting downwardly from said working end is a lug or plate 4 to which the landside may be secured in the usual manner. The lower edge of the landside-attaching lug 4 is recesed at its forward end, as shown at 5, whereby a transverse shoulder 6 is provided, the forward extremity of said lug being beveled or tapered, as indicated at- 7. The cutter 8 is so formed as to be co-extensive with the lower forward edge of the share and the point thereof and is correspondingly; shaped. The upperrear edge of the cutter .is rabbeted or recessedlongitudinally in its front or upper side, as shown at 9, to engage with the rabbeted side 10 of the share, and fastening bolts 11 are inserted throu h the rabbeted portions of the share and t e cutter, as shown clearly in Fig. V2, to secure the parts detachably butfirmly together. The share and the cutter are of equal thickness so that the surfaces thereof will be Hush both at the front or upper sides and the rear or under sides of the elements and, consequently, there will be no choking of the plow while in use. The working edge of the cutter is beveled upon its under rear side, as shown at 12, whereby a cutting edge'will be produced and the forward portion of the cutter is curved forwardly, as shown at 13, so as to iit closely to 'the point 3 of the share. Upon its front face, the cutter is provided with a transverse shoulder 14 which will abut the extremity of the point 3 and this shoulder may conveniently be formed by continuing the rabbet 9 ofthe cutter around the curved portion 13 thereof, as clearly shown in Fig. 3. Extending rearwardly from the shoulder 14 on the rear side of the cutter is a tongue 15 which is adapted to fit within the recess 5 of the landside lug 4 and be secured thereto by a suitable bolt inserted through an opening 16 adjacent the extremity of the tongue and into a socket provided therefor in the forward wall of the recess 5, as will be readily understood, the extremity of the tongue abutting the transverse shoulder 6 on the landside lug.

v The landside and the mold-board are secured tothe share 1 in the usual manner and the plow is operated in the same inanner as an ordinary plow is used. It will be readily noted that I have provided a detachable cutting edge which' may be readily secured to or removed from the share so that, when one cutter has been worn down so as to .be no longer available, it may beeasily detached and a new cutter substituted therefor. The peculiar construction of the cutter and the share will eifect a mutual interlocking or bracing engagement of the parts so that, when in use, the cutter will be effectually held to the share and cannot be easily accidentally removed therefrom. The exposed surfaces at the joints all are flush so that there are no obstructions presented to the soil which would tend to obstruct the easy passage of the soil from the point or share or landside and accumulation of dirt upon the plow with consequent choking thereof is, therefore, avoided. The rabbet or channel 10 of the share and the rabbet or channel 9 on the cutter are co-extensive in form and dimensions so that, when the cutter may be effected in .a few minuteswithout similar implements.

the use of skilled labor or any specialtools so that by the use of my devlcea conslderable saving may be effected by users of plows and Having thus described the invention, what is claimed as new is:

The improvementv in plows herein sety forth consisting of a share provided'with a channel along its lower front edge in lts rear side and rovided at its point end with a downwar ly projecting landside-attachin lug having its forward lower edge recesse thereby presenting a transverse yshoulder in rear of the lower forward extremity of the said lug, and -a cutter having a longitudinally extendin 'rabbet at its upper rear edge in its Ifront si e to interlocklngly engage with the rabbet at the lower front edge ofA the share, said rabbet extending across the point of the cutter to definev a transverse shoulder on the upper front side thereof to abut the extremity of the point end of the share and having a rearwardly extending tongue projecting from the base of said shoulder to fit within the recess at the lower forward end of the landside lu and having its upper extremity abutting t e transverse y shoulder at the upper end of said recess, and

fastening devices inserted through the rabbeted portions '1n the share and the cutter and through the said tongue vinto the recessed portion of the landside lug.

In testimony whereof I ax my signature.

CHARLES R. PRIGEL. u, 5.] 

